How do blood vessels carry oxygenated and deoxygenated blood at the same time during double circulation?
If we say oxygenated blood is going from lungs to heart, what about the deoxygenated blood at this time?

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Solution

Dear student,
Veins except pulmonary vein carry deoxygenated blood from different parts of the body to the heart. Pulmonary vein carry oxygenated blood from lungs to left atrium.
Arteries except pulmonary artery carry oxygenated blood from heart to different parts of the body. Pulmonary artery carry deoxygenated blood from right ventricle to lungs for purification.
Thus, different blood vessels carry oxygenated and deoxygenated blood at the same time separately.
If oxygenated blood is going from lungs to heart, deoxygenated blood goes from lungs to heart for purification.
Regards

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Blood flows twice in the heart. In pulmonary circulation, the deoxygenated blood is carried to the ________ from the __________ of the heart, through the ________. The oxygenated blood from the lungs is carried back to the ________ of the heart through the __________. This oxygenated blood from the heart is carried to all systems of the body and the deoxygenated blood from the systems below and above the heart is supplied to the ________ of the heart through the _________.

Anwer the following questions: [5 MARKS]
1. Name the vessels which carry blood to the heart.
2. Name the vessels which carry blood away from the heart.
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4. Which chamber of the human heart receives deoxygenated blood?
5. Describe how deoxygenated blood from this chamber is sent to all parts of the body.

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How do blood vessels carry oxygenated and deoxygenated blood at the same time during double circulation? If we say oxygenated blood is going from lungs to heart, what about the deoxygenated blood at this time?

How do blood vessels carry oxygenated and deoxygenated blood at the same time during double circulation?
If we say oxygenated blood is going from lungs to heart, what about the deoxygenated blood at this time?